Hike Bear Peak or explore the beautiful city of Boulder with Native Eyewear's Polarized Flatirons Sunglasses shading your eyes with advanced optics. N3 polarized Reflex lenses block up to four times more infrared light than regular polarized lenses, and they enhance contrast, block glare, and provide superior impact resistance. Native Eyewear paired these stunning optics with an equally stunning frame made of Rhyno Tuff Air collision resistant thermoplastic. The frame also features cushy co injected molding, Mastoid grip at the temples, and Cushinol soft pads at the adjustable nose.